/Engine/Source/Developer/ToolWidgets/Public/Filters/FilterBase.h
Can be overriden for custom FilterBar subclasses to load settings, currently not implemented in any gneeric Filter Bar
void LoadSettings ( const [FString](API\Runtime\Core\Containers\FString) & IniFilename, const [FString](API\Runtime\Core\Containers\FString) & IniSection, const [FString](API\Runtime\Core\Containers\FString) & SettingsString )